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High-toughness polyvinyl chloride tube

A technology of polyvinyl chloride and chlorinated polyvinyl chloride, which is applied in the direction of rigid pipes, pipes, pipes/pipe joints/pipe fittings, etc., and can solve the problem of reduced impact strength of hard polyvinyl chloride plastic drainage pipes and impact resistance of PVC pipes Poor, tensile strength decline and other problems, to achieve the effect of improving aging resistance, improving smoothness of lubrication, and improving toughness

Inactive Publication Date: 2014-04-23
WUJIANG HUACHENG COMPOSITE MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and it is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.
[0003] However, PVC pipes, especially UPVC pipes, have poor heat resistance, and their tensile strength decreases in environments above 60°C, and the impact strength of hard polyvinyl chloride plastic drainage pipes decreases in low temperature environments.
In the process of transportation, installation and use, it is prone to brittle failure; in addition, the performance of PVC pipes to withstand impact is also poor

Method used

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  • High-toughness polyvinyl chloride tube
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Experimental program
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Embodiment Construction

[0016] The components were prepared in the weight ratios shown in Table 1.

[0017] The weight proportion of table 1 embodiment 1~embodiment 3

[0018]

[0019]

[0020] The chlorine content of the above-mentioned chlorinated polyvinyl chloride resin is 61-65%.

[0021] The aforementioned stabilizers are organotin stabilizers.

[0022] The lubricant mentioned above is paraffin polyethylene wax.

[0023] The above-mentioned colorant is carbon black.

[0024] The preparation method of above-mentioned high tenacity polyvinyl chloride pipe is:

[0025] S1: Weigh each component in proportion, mix evenly at a temperature of 90-110°C, and keep warm for 20 minutes;

[0026] S2: Put the mixture obtained in S1 into the conical twin-screw extruder, the body temperature is 150°C, the first zone is 180°C; the second zone is 190°C; the third zone is 195°C; the fourth zone is 200°C; the fifth zone is 210°C; 30rpm; feeder speed is 20rpm;

[0027] S3: Vacuum sizing, forming, cuttin...

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Abstract

The invention provides a high-toughness polyvinyl chloride tube, belonging to the technical field of high polymer materials. The high-toughness polyvinyl chloride tube is prepared from the following components in parts by weight: 100-150 parts of polyvinyl chloride resin, 20-30 parts of chlorinated polyvinyl chloride resin, 6-8 parts of acrylic resin, 2-4 parts of polytrimethylene terephthalate, 3-6 parts of polyurethane, 10-15 parts of styrene-butadiene rubber, 3-6 parts of maleimide, 1-2 parts of methyl methacrylate, 1-2 parts of dibasic lead phosphite, 2-4 parts of silicon carbide whisker, 1-2 parts of glass fiber, 2-3 parts of polyamide, 2-4 parts of diphenyl phosphite, 2-3 parts of stabilizer, 2-6 parts of chlorinated polyacrylic acid-butadiene-styrene copolymer, 1-2 parts of antiaging agent, 1 part of aluminum oxide, 1 part of silicon dioxide, 1 part of titanium dioxide, 2-3 parts of mullite, 1-2 parts of titanate coupling agent, 6-10 parts of lubricant and 2-3 parts of colorant. The prepared polyvinyl chloride tube has the characteristics of high toughness and high mechanical strength, and is superior to like products in the market.

Description

technical field [0001] The invention provides a high-toughness polyvinyl chloride pipe, which belongs to the technical field of polymer materials. Background technique [0002] Polyvinyl chloride pipe, also known as PVC pipe, is a pipe made of thermoplastic polymer polymerized by vinyl chloride monomer. It uses polyvinyl chloride resin as the main raw material, and adds an appropriate amount of anti-aging agent, modifier, etc. It is a material made by kneading, calendering, vacuum blister and other processes. PVC pipe has strong corrosion resistance and is easy to bond. PVC has strong resistance to oxidizing agents, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and it is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons. [0003] However, PVC pipes, especially UPVC pipes, have poor heat resistance, and their tensile strength decrea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L27/24C08L9/06C08L33/00C08L67/02C08L75/04C08L33/02C08L25/10C08L77/00C08K13/04C08K7/10C08K7/14C08K3/34C08K3/32C08K5/526C08K3/22C08K3/36B29C47/92F16L9/12B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 肖伟荣
Owner WUJIANG HUACHENG COMPOSITE MATERIAL SCI & TECH
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